Product Description Room TemperatureCartridge Size: 110 x 90 x 8 mm (4-1/3" x 3-5/9" x 1/3")Viewing area: 100 x 49 mm (3-11/12" x 1-11/12")Sensitivity: Stepless AdjustmentDelay time: Stepless Adjustment 0.15S ~0.80SShade Adjustment: Outside & SteplessSensors: 2TIG Capability: ImprovedPower Supply: Li-Mi & Solar CombinationUV & IR protection: Up to shade 15Optical class: 1/1/1/2Certification: CE EN379Warranty (years): 2Weight: 490G (1.08 Pound)Material of helmet: NYLonAvailable color: Blue/black/silver/red[Optional Filters: WH900 Series, WH700 Series, WH500 Series, WH300 Series, WH100 Series]Certification: CE EN175Patented DesignPatented Registration No.: ZL200530102435.9